added -l for --logging

Author: cenfun

README.md

@@ -711,7 +711,7 @@ Arguments:
 Options:
   -V, --version                output the version number
   -c, --config <path>          custom config file path
-  --logging <logging>          off, error, info, debug
+  -l, --logging <logging>      off, error, info, debug
   -n, --name <name>            report name for title
   -r, --reports <name[,name]>  coverage reports to use
   -o, --outputDir <dir>        output dir for reports

lib/cli.js

@@ -177,7 +177,7 @@ program
     .argument('<command>', 'command to execute')
     .allowUnknownOption()
     .option('-c, --config <path>', 'custom config file path')
-    .option('--logging <logging>', 'off, error, info, debug')
+    .option('-l, --logging <logging>', 'off, error, info, debug')
 
     .option('-n, --name <name>', 'report name for title')
     .option('-r, --reports <name[,name]>', 'coverage reports to use')